Feed box for fiber scouring machines



Dec. 12, 1950 E. H. BROOKS, SR 2,533,218

FEED BOX FOR FIBER SCOURING MACHINES Fild July 12, 1946 2 Sheets-Sheet 1Edward H. Brooks,$r.

INVENTOR.

Dec. 12, 1950 E. H. BROOKS, SR

FEED BOX FOR FIBER SCOURING MACHINES Filed July 12, 1945 2 Sheets-Sheet2 Edward (-I. Brooks, 5r.

INVENTOR. Q0162.

W W M$ Patented Dec. 12, 1950 UNITED STATES PATENT OFFICE FEED BOX FORFIBER SCOURING MACHINES Edward H. Brooks, Sr., Portland, Maine, assignorof one-half to Edward H. Brooks, Jr., Portland, Maine, and one-half toElton H. Thompson, Cape Elizabeth, Maine Application July 12, 1946,Serial No. 683,203

4 Claims. 1

This invention relates to improvements in feed boxes for fibre scouringmachines and relates to subject matter similar in nature to thatdisclosed in pending applications Serial No. 694,991 and Serial No.696,294, now Patent No. 2,498,646, issued Feb. 28, 1950.

An object of the invention is to provide an improved feed boxconstruction for fibre scouring machines in which fibre stock may bedeposited and carried by means of an endless conveyor to a rotatingpickup or feed roll which will convey the fibre stock upwardly to bestripped by a rotary toothed roll and then brushed from said feed rollby a rotary ejector or doffer roll into a chute which will dump thefibre stock into a tank where it will be thoroughly washed and scoured.

Another object of the invention is to provide an improved feed boxconstruction for fibre scouring machines which will be formed with apower driven rotary pickup or feed roll comprising a perforated cylinderand a pair of spaced circular U-shaped fixed guide channels in which pinsupporting bars or rods will be transversely mounted with the pinsadapted to extend through the perforations in said cylinder to pick upthe fibre stock, said channels having portions inset from a perfectcircle to automatically retract the bars and pins as they reach theupper portion of the guide channels to free the fibre stock at a pointwhere a doffer or ejector roll will brush it from the pick-up roll andthrough a chute into a washing bowl.

Another object of the invention is to provide an improved box for fibrescouring machines which will be highly efficient in operation, andrelatively inexpensive to manufacture and produce.

Other objects will appear as the description proceeds.

- In the accompanying drawings which form a part of this application,

Figure 1 is a longitudinal sectional View taken through the improvedfeed box showing the relative positioning of the endless conveyor, thefeed roll, the stripping roll and the doffer roll;

Figure 2 is a plan view of the improved feed with pickup pins attachedand formed with the oppositely disposed guiding heads which ride in theguide channels,

Figure 7 is a detail sectional view taken on the line 'I'I of Figure 1,and

Figure 8 is an enlarged fragmentary sectional view showing the guidechannel cam track and members disposed therein taken substantially onthe line 88 of Figure 2 and in the direction of the arrows.

Like characters of reference are used throughout the followingspecification and the accompanying drawings to designate correspondingparts.

In carrying out the invention, there is provided an improved feed boxconstruction for fibre scouring machines including a box or housing Iwhich will be secured to one end of a washing tank 2, clearlyillustrated in Figure l of the drawings.

The housing I is provided with a removable cover 3 which is open at itsforward end to provide the inlet opening 4 through which the fibre stockmay be dumped into the said feed box or housing I.

An endless conveyor is mounted longitudinally of the feed box I inspaced relation with the bottom of said feed box, and comprises thespaced rollers 5 and 6 which are mounted upon the shafts I and 8respectively, and support the endless conveyor belt 9 which extendsapproximately the full width of said feed box housing I.

Disposed transversely of the housing I adjacent the forward end of saidendless conveyor and slightly above the same, is a shaft H] which issuitably mounted between the opposite sides of the feed box housing i,and supports the oppositely disposed end plates or members II which areaifixed thereto. A plurality of rectangular shaped bearing notches I2are formed about the periphery of each of said end plates or members II,and are adapted to receive the ends of the sticks or bars I4 in which arow of upwardly extending pins I5 are supported. The bearing heads orrollers I6 are mounted upon the outer ends of the bearing ends I3 of thebars I4, and are adapted to be received within the oppositely disposedU-shaped guide channels I1 secured by means of the oppositely extendingattaching tabs I8 to the inner faces or surfaces of the side of saidfeed box housing I, screws or other suitable fastening means (not shown)being inserted through suitable apertures formed through said tabs.

The U-shaped guide channels IT are circular in form, but have portionsof each channel inset,

3 as clearly illustrated in Figure 4 of the drawings, to form the camportions [9 of said guide channels so that as the shaft i is rotated ina clockwise direction to rotate the end plates or members attachedthereto, the plurality of sticks or bars supported in the sockets insaid end plates or members and having bearing engagement in the guidechannels, will transmit motionand pick up the cylindrical perforatedroll 29, due to the pins it on the sticks or bars is extending.

upwardly through the perforations in said..roll..

A toothed roll 2i will be fixed to the shaft 22" mounted transverselybetweenytheopposite sides;

of the feed box or housingi, andwill be .posie tioned adjacent the pickup or feed roll 2G-so' that as the fibre stock is fed to the pick uproll by means of the endless conveyor,- andpicked up by the protrudingpins on the sticks or bars H. and carried upwardly, some of said fibrestock:-

will be removed from the roll 2s. Immediately thereafter the cam.portionscf. the; Urshaped guidechannel will cause thG SDlGKS,OITbEtlfSltQdidB inwardly to retract the pins :130. a; positioneven with or. immediately below. thebuter surface of the cylindricalperforatedroll thereby leaving. annatted covering of the fibre-stockclingingto thesurfaceof said roll, and .as the roll. radsvianscs in:a;clockwise. direction the doffer or ejector roll 23 will brush-thefibre stock;.,from the pickup roll and into the chute it formed asaecontinuation otthecover 53, directly: into theiadiacent endof.theswashingtank.2. A doctor blade 2;": will engage thesurfaceof thecylindricalperforated roll 25 to scrape any remaining fibre thereiroin.

It willv be understood that the several shafts for the endless conveyor,thetoothed roll, the dofier or -ejector. rolland the pick upor. feedroll willhe eXtendedthrough-one side of the feed box housing 6-tobesuitably connicted-by any. desired meansto a suitable-driving motor(not shot-in).

From the foregoing d;scription,-it v. iil: be seen that therehas beenprovideda highly efficient form of-feed box-mechanism for 1 fibre.scouring machines which will pick up the fibrc stock as tisdepositedwithin the box'and transport the same past a rotarytoothed roll toremove some of the stock, after which the-remainder of the simck-dn-matted-form will 'be removed from the feed roll by' means of therotarydoc-er wheel and-deposited through the feed chute -into theadjacent washing-"tank.-

While the 1 preferred" embodiment of the stantinventicn has beeniilustrated and scribed, it will be understood that-'it-is notintendedtoil [111113131118 scope of the-invention thereto;-as many minor changesin detail of construction-may be resorted to without departure ironi thespiritof the invention.

Having thus described myinvention--what=l claim as new and-desire tosecure by Letters Patent of the United States is:

l. A-feed' box for fibre scouring machines, said feedbox including ahousing having a cover formed with a- -f1bre stock inlet opening, anendless conveyor to convey fibre stock and dispos din-said housing belowsaid-inlet-opening, a p i'orated feed roll rotatably mountsdin-saidhousing' adjacent the discharge-end of. said conveyor to receive-conveyedstock, peripherally notched end-members forming a part ofs'aidfeed'roll, oppos-itelydisposed guide channes- 0f' U-shape in crosssection having camming peripheral sections secured to the inner oppositewalls of said housing, aplurality- 0f sticks mounted betwee said guidechannels and disposed in the peripheral notches in said end members,means secured to the ends of said sticks and disposed in said channelsand engaging said camming sections when said feed roll is rotated tolaterally displace said sticks, radially extending pins on said sticksdisposed in the perforations in said feed roll= 5 for: automaticproiection" and tretraction as said sticksdisplacing means passes oversaid camming sections to pick up the stock from the discharge end ofsaid conveyor and to release the stock duringrotation of said feed roll,and means forming an outlet in said housing adjacent said feedgrol-lforv passage of the stock from the feed roll .to the exterior-of saidhousing.

2." A feed boxfor fibre scourin machines, said feed b'ox" including ahousing having a cover formed witha fibre stock inlet opening, anendless conveyor to convey fibre stock and disposed in said housingbelow said inlet opening, a perforated feed roll rotatably mounted insaid housingadjacent the discharge end of said-conveyor to receiveconveyed. ,stock,; peripherally; notched end-.members forming-,ampartofsaid feedyroll, oppositely-disposed guide channels of U-shape in cross"section having camming, peripheral: sec-e tions secured to the inneropposite walls :ofsaid housing, a. plurality: of sticks.- mountedbetween said-guide channels and disposed inthe peripheral notches,insaid end. members,v means secured tovthe endsof said sticks anddisposed in said. channels and; engaging. said. camming sec-.- tions.when said, feedv roll ;is; rotated .tolaterally displacesaidsticks,;.radially.extending pins on said sticks disposedwin theperforations :in said feed roll for automaticzprojecltion and retracetion as.:said sticks :clisplacin meansipasses over said camming sectionsto pick up the stock from the discharge end at. said; conveyor 1 and toreleaSethe'StOCk during-rotation. ofizsaid feed-roll, means forminanizoutlet in saidrhousing adia: cent said feed roll forpassageotthestock from the. feed .roll to. the exterior oi;said housing, a doctorblade engageable with the outer; surf ace of) said. i feed; .1'011-1.to. strip. fibre from: said feed roll; and said doctor-blade beingdisposed in said means forming:.;an outlet in said. housing;

3; A'feed boxifor fibre'scouring machinessaid feed box.including..a:.housing having-.-.a; cover formedwith: a fibre stockinlet opening, an::end-v less-conveyor to convey fibre stock anddisposed in said. housing! below: said -in1et-:opening-,1 a per-xforated feedroli rotatably mounted inxsaidahous: in-g adjacent thedischarge end of saidciconveyor to: receive r conveyedr stock;:peripherally notched end.-.members-.aforming;;a. part: of said feedr011,

oppositely disposed; guide channels of U-shape in CBI'OSSiSEGtiOH'.having camming peripheral sec tionswsecured I theinn er. opposite wallsof said housing, a, plurality of sticks mountedzbetween said guidechannels and disposed in: theperipheral notches in said end :members,means ,secured tonne-ends of said sticks:and disposed insaid: channels.and 1: engaging; said" camming sections ;when v said :feed roll isrotatedr'to later: ally .displace. said sticks, radially extendi'ngpins; onsaid'sticks disposed'jn the! perforations in said. feed roll'for automatic 'projection; and re-z traction as said sticks displacing"mean passes over said. camming sections. to: pick up the stock from thedischarge end of said conveyor and to release the stock during.:.rotation of said feed roll, means forming=.an:outlet. in'rsaidhousingadjacent said .ifeed rolllfor: passage of: "the, stock from the feedroll to. LthBJBXtBIiOY. of said housing; azdoctozt blade disposedrin the:fibre .out-

let and engaging the outer surface of said feed roll to strip said feedroll of fibre, and a fibre doffer roll mounted for rotation in saidhousing adjacent said feed roll to assist in removing the stock fromsaid feed roll.

4. A feedbox for fibre scouring machines, said feed box including ahousing having a cover formed with a fibre stock inlet opening, anendless conveyor to convey fibre stock and disposed in said housingbelow said inlet opening, a perforated feed roll rotatably mounted insaid housing adjacent the discharge end of said conveyor to receiveconveyed stock, peripherally notched end members forming a part of saidfeed roll, oppositely disposed guide channels of U-shape in crosssection having camming peripheral sections secured to the inner oppositewalls of said housing, a plurality of sticks mounted between said guidechannels and disposed in the peripheral notches in said end members,means secured to the ends of said sticks and disposed in said channelsand engaging said cammin sections when said feed roll is rotated tolaterally displace said sticks, radially extending pins on said sticksdisposed in the perforations in said feed roll for automatic projectionand retraction as said sticks displacing means passes over said cammingsections to pick up the stock from strip said feed roll of fibre, afibre doffer roll mounted for rotation in said housing adjacent saidfeed roll to assist in removing the stock from said feed roll, astripping roll mounted in said housing adjacent said feed roll to removestock from said feed roll as said feed roll i rotating, and a dischargechute connected with said housing and connected in communication withsaid means forming an outlet for said housing.

EDWARD H. BROOKS, SR.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 135,528 Craven Feb. 4, 1873668,907 Delerue Feb. 26, 1901 2,242,998 Bogaty May 20, 1941

